Portable electric lamp.



D. A. MURPHY.

PORTABLE ELECTRIC LAMP. APPLICATION FILED-APR. 6. 19m

1,295,567 Patented Feb. 25, 1919.

To all whom it may concem:

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Z PORTABLE ntnc'mrc mmr.

Be it known that I, DAvIn A. Mm rrrr, a subject of the Kingdom of :Great Britaln,

' residing at Portland, in the county of Multlight that may be seen from a long dis-- lighted instantaneouslyand that can quickly I display lights of different characteristics,-

nomahand State of Oregon, have invented certain new and useful Improvements .in Portable Electric Lamps, of which the fol lowing is a specification. I L- This invention relates to portable electric lamps that may be carried like a lantern and is especially adapted for use on railway systems as a signal lamp or lantern.

Its objects are to provide a clean-strong tance; that may be easilyfextinguished or such as red, green or white, as desired. Also a chamber'or recess is provided for holding extra light bulbs and by, locking the hail,

- elevation of the lamp shifting mechanism in .locking lever 20, showing lock pins 21.

the chamber 11, from the lamp "end. Fig. 4 is a plan of the lamp shifting mechanism. Fig. 5 is a side elevation of the complete lantern, showing the battery 4 in cross, section. Fig. 6 is a side elevation of the in-- sulated holding plate 19, showing notohes18 therein. Fig. 7 is a side elevation of notched plate 19, showing the relationof the lever 9 and the insulated sleeve 8 thereto. Fig.

8- is a side elevation of the bail locking lever 20. Fig. -9 is a side elevation of the boss 23. and disk 24 to which bail 1 is attached. Fig. 10 is a perspective view. of the bail thereon.

The body 3 of the lantern is a hollow metal cylinder or barrel, Fig. 5, with .areflector 5 at the bottom, and the wire 6 attached to this body part and pro ecting for-some distance below it. A removable cap or cover 2 is attached to the top of the body part 3, as shown in Fig. 1, by means of the bayonet slot 38 and.the pin 37, there I being two of these slots, one on each side of the lantern. The spring 34 .on the under- Specification of Letters Patent.

cr um piece 30, Figs. 2

ards

Patented Feb. 25, ieie.

Application filed April e, 1918. Serialiifo.227,031. I

neath side of the cover 2 tends to hold the battery 4 firmly in place. The bail 1 is pivotally attached to the body 3 and can also as will be hereinafter explained. The most important; feature of the lantern is the electric lamp shiftin mechanism in the chamber 11, below the attery 4, Figs. 3 and 5, by which lights of different characteristics may be quickly displayed and withdrawn, one at a time, thus providing a means by which 'a white light, for example, may be replaced with a red light or with a green light just as desired, or vice versa. An insulated plate 19, Figs. 6 and 7 with the three notches 18 therein, is firmly clamped by screws or bolts to the inner wall of the chamber 11, with insulated material .37, Fig. 4, placed between the metal body 3 and the curved metal plate 19. The lever 9, with insulated sliding 75 .4 crumed on thevertical insulated pintle 13, I

sleeve 8 thereon, Figs. 2, 4 and 5, is ful- Figs. 3 and 5,'and en ages the top of yoke l2, Figs. 3, 4 and5. g bar or rod 29, Figs. 2 and 3, extends across the bottom of the yoke 12. A triangular iece 28, Figs. -2

be locked in a vertical position, if desired,

and 4, is pivoted near t e bottom of the pintle. 13 and is placed above the rod 29 so that when the latter is raised, 28 will lift up also. The inner ends of arms 14, 10 and 27, Figs. 2 and 4, are pivotedon the fulends hold the lamp sockets 33, Fig.v 4, in which the electric lamps a, b and 0, Fig. 3, are placed. The part 30 is made of fiber or other suitable nsulating material. The arms 14, 1O and 27 extend radially from the pintle 13 as a center and are placed just above the outer arm of the triangular part 28, so'that when the yoke 12 and rodv 29 are raised, the part 28 is also lifted, engaging all three arms14, 1 0 and 27 and holding 1 them in elevated position. The lamp sockets attached to the outer ends respectively of the three arms 14, 10 and- 27, Fig. 4, are .so placed on'the bars that the central connection of each lamp isin electrical contact with its respective arm. ,The rest of the connection of the electric lamp, being grounded by the wires 32 to the outer metal rings 31. The length of the arms 14, 10

and 27 is so proportioned that when each and 4, andthe free 'socketis insulated, the inner metal ring 33, Fig. 4, which is in contact with the outer shows at a time, as in Fig. 3, when lamp 0 made of insulating material, such lamp is brought overthe opening 40 in the bottom of the lantern, Fig. 3, the arm may be lowered and the lamp projected through the opening. The springs 15, Figs. 4 and '5, tend to press the arms 14, 10 and 27 downward. The relation between the spacing of the notches 18 and the arms 14, 10 and 27 is such that when the lever 9, for example, rests in the right hand notch, the right hand arm 27,as you hold the lever side of the lantern toward you,is in position so that the lamp 0 projects through the opening 40; when the lever 9 is in the centrJ- notch the central arm 10 is alined with the opening and the lamp 6 projects therefrom and if the lever is in the left hand notch, the arm 14 is in proper position to display lamp a. The sleeve 8, Figs. 2, 4 "and 5, is preferably as wood fiber, or' ifmade of metal it is insulated from the metal lever 9 on which it slides; it has a lip which fits into one of the notches l8 and when the lever is pressed down slightly and this sleeve moved along lever 9, this lip will be interposed between the lever and the insulated notched plate 19,

. through which the current passes and will thus hold the lever out of electrical contact therewith. Care must be taken also to insulate the screws or bolts which hold the plate 19 in place so they will not make electrical connection with the body of the lantern. The pole 35 of the dry battery 4 rests on the metal supporting strip 16 connected with the body of the lantern; pole 36 is in contact with 17 of the plate 19. When the sleeve 8 is back and the lever 9 is in contact with the plate 19, the current passes through 17, plate 19, lever 9, oke 12, rod 29, part 28, arms 14, 10 and 2 to the central connection of the electric lamps a, b and a respectively. As only one lamp is projected from the opening 40, lamps a and b are in the chamber 11 with the apex of the lamps resting on top of the reflector 5, thus holding their respective bars out of contact with the part 28 and hence no current will pass and the lamps are not ignited.

The'guard'6, made of stout wire, protects the exposed lamp and even if the lamp should come in contact with some object, it would be forced back into the chamber 11, for the springs 15 are of light tension and the arms 14, 10 and 27 are free to move upward under slight pressure. Another feature to which I have referred, but not fully explained, is the bail locking device, whereby the 'lantern may be used to project the rays of light in any desired direction. A boss 23 is affixed to each side of the lantern, Fig. 5, and a disk. 24 fits thereon, turning freely on the pin 25. Each end of the bail 1 is attached to its respective disk and thus the body of the lantern may be swung freely assess? on the pins 25 as pivots. On one side of the lantern the boss and disk are perforated with two holes 22, Fig. 9, and an eccentric lever 20, Fig. 10, with the lock pins 21, is placed on the inside of the lantern body, with an end projecting, Fig. 5, so that when the bail is in a vertical position, the lever 20 may be pressed down and the pins 21 will engage the holes 22 and lock the bail. The lantern may then be held in any position desired and the rays of light projected in any direction. In order to intensify the light, in addition to the reflector 5, I prefer to use lamps with magnifying tips as shown, a, b, 0, Fig. 3; it will be noted that the apeX of these lamps is very thick, greatly intensifying the light and contributing to the superiority of this'lantern. The battery 4 is composed of several cells, with a chamber 7, Fig. 5, in the center, suitable for carrying extra lamps. In the lantern shown in the drawings there are three lamps in the chamber 11 and two in the chamber 7, providing a total of five lamps to meet any emergency.

The lantern is simple in operation and manipulation. Suppose a is a white light, 6 a red light and c a green light. To change from a reen light to a red light, press down on the ever 9, raising the yoke 12 and lift mg lamp 0 out of the opening 40; then move and let it rest therein, the lamp 6 will be projected through the-opening 40 and as the series of electrical connections, is complete the lamp will be ignited; the other two lamps a and a will ivemain in the chamber 11, one on each side of 6, their tips resting on top of the reflector 5 and the electrical contact being thereby broken between their arms 14 and 27 and the part 28, the lamps a and 0 will not be ignited.

Likewise when lamp a is projected through the opening 40, the lever 9 is in the left hand notch and the lamps b and 0 are in elevated position in the chamber 11 and out of electrlcal contact. If it is desired to leave the red lamp 6 in position, but not ignited, the sleeve 8 is interposed between the lever 9 and the plate 19 as heretofore explained, and the current will be out off from the lamp. By moving the sleeve 8 back on the lever, the electrical connection will be restored and the red lamp ignited. By a similar manipulation any lamp in the chamber 11 may be displayed by the lantern. The number of lamp holding arms and corresponding notches can be increased thereor lanterns to provide means whereby lights of different characteristics may be quickly displayed. I

I claim,

1. In a lantern ofthe type described, a body part, a battery within said body part, a chambered section below the battery, a reflector, with a central opening therein, forming the bottom of the body part, a plurality of electric lamps within said chamber and means for projecting and withdrawing said electric lamps, singly, through said opening.

2. In a lantern of the type described, a body part, a battery within said body part,

a chambered section below the'battery, a

plurality of electric lamps within said chamher and means for projecting and withdrawing, singly, said electric lamps through a central opening in the bottomof the body part.

- body part,'a chambered section thereof, .a

3. In a lantern of the type d escribed, a-

1 4. In a lantern of the-type described, a

body part, a boss on each side of the body part, one of which has openings therein,

a pin in the center of each boss projecting outwardly, a disk on'each side fitting its respective boss'and turning freely on its pin, one of saiddisks having openings therein when the bail is in a vertical position.

5. In a portable electric lantern, lamp shifting means comprising a vertical pintle bolt, a horizontal lever fulcrumedon said pintle, -a yoke pivoted at the end of said lever, a bar at the bottom of the yoke, a triangular lifting arm pivoted near the bottom of said pintle bolt and extending above the yoke bar and a plurality of lamp carrying arms extendin radially from the pintle bolt as a center and fulcrumed at their inner ends so that the arms respectively will be just above the said lifting arm.

.. DAVID A; MURPHY. 

